What about now?

Has anyone told you the saying? The one where it says something like pain shows you you're still alive? Yeah. That one. It's true right? If you feel the pain you know you're alive. That you can still escape whatever the hell you were in. But what about then when you don't feel that pain? Tell me what do I do? What do I do when the pain that proved I was still alive, is gone? But still I'm not fine? I still can't seem to climb up the edge, can't see the clear sky. I'm still hanging of the ledge with the tip of my fingers. I feel the hard unforgiving rock breaking my skin, feel the air under my feet. The sure death if I let go. Yet I don't feel the pain. I don't feel the hurt, the piercing feeling in my chest. I don't feel that, which is supposed to prove me I'm alive and still have a chance. So please tell me. What can I do?